| Hemel Hempstead to Caldicot | 98.33 mi (158.24 km) |
| Hemel Hempstead to Calne | 69.41 mi (111.70 km) |
| Hemel Hempstead to Cam | 81.18 mi (130.64 km) |
| Hemel Hempstead to Camberley | 31.14 mi (50.12 km) |
| Hemel Hempstead to Camborne | 235.46 mi (378.93 km) |
| Hemel Hempstead to Cambridge | 40.07 mi (64.48 km) |
| Hemel Hempstead to Cambuslang | 318.84 mi (513.12 km) |
| Hemel Hempstead to Canford Cliffs | 96.35 mi (155.06 km) |
| Hemel Hempstead to Cannock | 92.47 mi (148.82 km) |
| Hemel Hempstead to Canterbury | 74.18 mi (119.38 km) |
| Hemel Hempstead to Carlisle | 239.66 mi (385.69 km) |
| Hemel Hempstead to Carlton Colville | 103.69 mi (166.88 km) |
| Hemel Hempstead to Carluke | 307.45 mi (494.79 km) |
| Hemel Hempstead to Carnoustie | 340.35 mi (547.74 km) |
| Hemel Hempstead to Carshalton | 29.74 mi (47.86 km) |
